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    <title>Document</title>
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<body>
    <!-- 图片 -->
    <img src="./img/dog.png" alt="小狗" title="这是一只狗" width="220" height="150" border="10">
    <!-- 工作中，会用css来设置样式 -->
    <img src="./img/dog.png" alt="小狗" title="这是一只狗" width="220" height="150" style="border: 10px dashed;">
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